Flushing-valve.



PATENTEDMAY 5, 19os. H. WERNER. FLUSHING VALVE. APPLICATION FILED JAN. 20, 1903.

N0 MODEL.

2 I l V UNITED STATES Patented May 5, 190a.

PATE T OFFICE.

FLUSHlNG-VALVE.

SPECIFICATION forming part of Letters Patent N 0. 727,240, dated May 5, 1903.

Application filed January 20, 1903. Serial No. 139,841. (No model.)

To aZZ whom. it may concern:

Be it known that I, HEINRICH WEHNER, a subject of the German Emperor, residing and having my post-office address at 223 Rdderbergweg, Frankfort-on-the-llain, Germany, have invented certain new and useful Improvements in Flushing-Valves, of which the following is a specification.

My invention relates to improvements in flushing-valves without reservoirs and floats, particularly of that kind described in my German Patent No. 136,909; and the objects of my improvement are, first, to provide the plug of the cock with a separate draggingshell having a hole, and, second, to provide means for'so actuating said dragging-shell as to move it only after the plug has nearly completed its angle of deviation for opening and closing the cock, respectively. I attain these objects by the arrangement illustrated in the accompanying drawings, in which-- Figure '1 is a vertical sectional view of a flushing-valve according to my German pat-- out on the line C D in Fig. 2. Fig. 2.is another vertical sectional view of the same on the line A B in Fig.1; Fig. 2 is a detail which will be referred to later on, and Fig. 3 is a horizontal section through the flushing-valve on the line E F in Fig. 2. Fig. 4 is a vertical longitudinal sectional'view of my improved fiushing-valve. Fig. 5 is a vertical cross-section through the same on the line G H in Fig. 4, a part being broken away.

Figs. 6 and 7 are cross-sections through a part 'of the same on the line K L inv Fig. at seen from left to right, and Fig. 8 is a horizontal section through the combined piston-valve on the line I J in Fig. 1.

Similar characters of reference refer. to

similar parts throughout the several views.

In order to better explain my invention, 1'

find it necessary to first describe the iiushing-valve according to my German Patent No. 136,909 and with reference to Figs. 1 to 6. The internal cylinder 8 is cast in one piece with the bottom 10, the external cylinder 7, and the casing 11 of a plug-cock, the outlet of which is denoted by 12. V The valve 2 is provided with a narrow opening 13, through which the supply-water is allowed to enter into the wider bifurcated channels 14. within the valve-body and two of the studs 4 4, and, further, into the regulating-chamber 6. 'The bottom 11 of the latter is provided with an aperture 15, and the plug 16 of the cock is provided, besides its bore 17, with a lateral opening 18 at right angles thereto and with an elbow-channel 19, the external end of which registers with the aperture 15 in the bottom when the cock is closed. (See Fig. 2.) Such flushing-valves are specially intended to replace the well-known waterreservoirs and floats used with water-closets and to preserve their advantages,while avoiding their disadvantages. The latter are the loud noise during flushing, the liability to leakage, and the possibility of mischief by allowing the water to continually run 0E. When a charge of liquid is required to flow ofl", the cock is first closed by turning the plug through an angle of ninety degrees, so

that its bore 17 is at right angles to the internal cylinder 8 and the outlet 12.

(See Fig. 2.) Then liquid will flow out of the regulating-chamber 6 through the apertures 15 and 19, the lateral opening 18, and the outlet 12. As the aperture 15 has a larger area than the narrow opening" 13, it follows that the liquid will run 01f quicker from the chamber 6 than liquid will enter the same. This means that the piston 5 will go downward and the valve 2 will open the inlet 1. When the plug 16 is again turned back to open the cook, the liquid can flow off direct from the inlet 1 through the openings between the four studs 4 4 and through the cylinder 8, the plug-bore 17, and the outlet 12. It is evident that the liquid will continue flowing until the slowlyrising piston 5 causes thevalve 2 to close the inlet 1. The time during which liquid will flow off will of course depend upon the pressure in the liquid-supply. When the leather packing 9 has become worn out and liquid will get from the regulating-chamber 6to the cylinder 8, and thence through the plug-bore, the flushing-valve would cease working properly, and besides this there would be a continuous waste of liquid. To prevent this waste according to my said German patent, a partition (the wall is arranged between the two casings 3 and 7, and the valve 2 is provided with ashoulder 21, which is arranged to rest on the partition-wall 20 when the piston 5 occupies its lowermost position. Then no or very little liquid will be wasted. I have found, however, that this flushing-valve still prevents the possibility of mischief by so placing the plug of the cock that it neither closes nor opens the cock completely, as is shown at Fig. 2. In this case the aperture 15 in the bottom of the chamber 6 will be closed, while there is still an outlet for the liquid through the bore 17 and the lateral opening 18. The consequence of this is that the piston 5 will stop in its respective position and cannot rise and cause the valve 2 to finally close the inlet 1, because the pressure on the piston 5 from below, owing to the liquid flowing into the regulating-chamber 6 through the narrow opening 13, will be equal ized by the pressure of the liquid on the piston from above. The liquid will therefore continue flowing off through the cock and become wasted. To remedy this defect, I now provide the flushing-valve with the improvements named above, and the so-improved flushing-valve is shown at Figs. 4 to 8.

The coupling 22, to be united in a knBw-n manner with the supply-pipe, is connected with the inlet-valve casing 23 by means of a nut 24. The inlet-valve 25 is in a similar manner as before provided with a shoulder 26, screwed on for resting on the partitionwall 27. Two of the four studs 28 are equally provided with channels 29, which terminate in holes of the leather packing 30, secured on the piston 31 by means of an annular disk 32 and several screws 33. The area of the narrow opening 34 can in a known manner be adjusted by a screw 35. The cock-casing 36 is cast in one piece with the external cylinder 37, the internal cylinder 38, and the bottom 39 of the regulating-chamber 40. To the cock-casing 36 the discharge-pipe can be connected by means of the coupling 40 and the nut 41. The plug 42 is to be limited in its revolution through an angle of ninety de grees in any known mannerfor instance, by a projection 43 on the cock-casing, which engages in a recess of the widened-out part 44 of the key 45. On the side opposed to the key 45 the plug 42 has a cylindrical part 46 of a smaller diameter, on which a draggingshell 47 is mounted to turn. This shell 47 is a ring with a sectoral part 52 cut out. Into this recess'a projection 48 of a disk 49 is arranged to engage. The disk 49 is secured on the plug 42 by means of a nut 50 and is prevented from turning bya face 51 on the plug extension bearing against a corresponding face within the hole of the disk 49. Thus the plug 42 is rigidly connected with the disk 49. The recess 52 is much larger than the projection 48, so that on turning the plug 42 in either direction the dragging -shell 47 will first remain idle until the projection 48 strikes against the respective end of the shell and takes the latter along with it. (See Figs. 6 and 7.) Thus the angle of deviation of the dragging-shell is smaller than that of the plug and is assumed to be about forty degrees. Of course this angle may be varied according to the circumstances. The dragging-shell 47 is provided with a hole 53, which can register with the aperture 54 in the bottom 39. The bore 55 of the plug not only communicates with the lateral opening 56, but also with the central cavity 57, and thereby with a lateral hole 58. (See Figs. 6 and 7.)

Fig. 4 shows all the parts in their normal positions. The ,regulating-ehamber 40 is shut off by the dragging-shell 47. (See Fig. 6.) When it.is desired to discharge a certain quantity of liquid, the plug 42 is first turned with the key 45 through an angle of ninety degrees in the direction of the arrow 59 in Fig. 7. From an examination of Figs. 6 and 7 it will be evident'that the hole 53 of the dragging-shell will only begin to icats with the aperture 54in the bottom 39 after the plug has completed most of its angle of deviation-'5. e. about 16=74 degrees when the plug will have closed the cock and allow no water, if therewere any, to flow through. Of course the operator will be obliged to completely close the cock before the area of the aperture 54, opened by the dragging-shell 47, will be large enough to allow a larger quantityof the liquid to escape from the regulating-chamber 40 than the quantity of the liquid entering this chamber through the narrow opening 34. Then the piston 31 will go down and cause the valve 25 to open the inlet 22. However, as the plug 42 is still closedifo'water is allowed to flow direct from the inlet 22 through the cock. When the plug 42 is now turned back in the direction of the arrow 60 in 'Fig. 6, it is evidentfrom the above explanation that the aperture 54 will be only closed after the plug 42 has completed most of its angle of deviation. This means that any mischief is rendered impossible, as no liquid will continuously flow 01f. By this improvement the operator will be induced to entirely open the cook. The liquid will "thenfiow direct from the inlet 22 through the openings between the four studs 28 28 and through the cylinder 38, the bore 55, and the outlet 40 into...t-he discharge-pipe. During this time the regulatingchamber 40 is gradually filled by liquid flowing through the narrow opening 34. The liquid continues flowing through the cook until at last the valve 25 closes the inlet 22. In case after closing the cook the shoulder 26 of the valve 25 should have come to rest on the partitionwall 27 it will only take a little time after again opening the cock before the liquid will commence to flow off. As already stated above, the partition-wall 27 will prevent the ICC v the cylinder 38.

waste of liquid in case the leather lid 30 should have worn out and liquid is allowed to pass from the regulating-chamber 40 to Then it will be impossible for the piston 31 to rise. The operator-will therefore be obliged to replace the leather packing by another one. V

The flushing-valve described so far canbe I varied without deviating from the spirit of my invention. The projection 48 of the disk 49 may be replaced by a pin or stud secured on the plug 42. i

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination with an inlet-pipe, of an inlet-valve chamber adjoining to said inletpipe, an inlet-valve arranged within said inlet-valve chamber for closing said inlet-pipe, an annular regulating-chamber formed by an external cylinder, an internal chamber and a bottom, an annular piston reciprocat ing in said annular regulating-chamber and rigidly connected with said inlet-valve by means of several longitudinal studs, an annular partition-wall between said inlet-valve chamber and said regulating-chamber, said inlet-valve being provided with a shoulder for resting on said partition-wall when said piston occupies its one extreme position, narrow holes provided in said inlet-valve and within said longitudinal studs for admitting liquid from said inlet to said regulatingchamber,a cock-casin g adjoining to said regulating-chamber, a plug mounted to turn in said cock-casing and provided with a main bore registering with said-internal cylinder, also with a lateral hole at right angles to said main boreand opening to the outlet and with a central cavity communicating with said main bore, said plug having a cylindrical ex- 0 tension with a lateral aperture communicating with said central cavity, means for limiting said plug in its revolutionthrough ,an angle of ninety degrees, a dragging-shell in the shape of a ring having a sectoral part out out and mounted to turn on said cylindrical extension of said plug and provided with a lateral aperture, and means secured onsaid plug for engaging in the recess of said dragging-shell while allowing the latter a certain 50 play, the said bottom of said regulatingc-hamber being provided with a hole registering with said lateral aperture of said dragging-shell, substantially as set forth.

In testimony whereof ,I have signed my name to this specification in the presence of two subscribing witnesses.

HEINRICH WEHNER.

Witnesses FRANZ HASSLACHER, MICHAEL VOLKE. 

